JP2008048783A - Dishwasher - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a dishwasher in which a part of the inner wall surface of a washing tub is used as a part of a fixed type washing nozzle for suppressing the generation of a gap between the inner wall surface of the washing tub and the fixed type washing nozzle and preventing the deposition of garbage in the gap, and preventing the fixed type washing nozzle from being detached from the inner wall surface of the washing tub due to the finger of a user entering the gap and getting hooked to the fixed type washing nozzle. <P>SOLUTION: By attaching a flange part 51 provided on a groove-like gutter part 50 to the inner wall surface of the washing tub 2 and fixing the gutter part 50 to the inner wall surface, the fixed type washing nozzle 5 for jetting water from a jetting port 52 provided on the bottom surface of the gutter part 50 is formed. The part where the gutter part 50 is fixed of the inner wall surface is used as a part of the fixed type washing nozzle 5. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a dishwasher that reduces the amount of leftovers accumulated in a washing tank and improves the internal capacity of the washing tank.

  FIG. 9 is a schematic enlarged sectional view of a fixed washing nozzle of a conventional dishwasher. In a conventional dishwasher, a housing 101, a cleaning tank 102 provided inside the housing 101, a cylindrical fixed cleaning nozzle 103 attached to the inner wall surface of the cleaning tank 102, And an injection port 104 provided in the fixed cleaning nozzle 103.

In this dishwasher, the dirt adhering to the tableware was peeled off by spraying water from the injection port 104 of the fixed type washing nozzle 103 to the tableware accommodated in the washing tank 102 (Patent Document 1). reference).
JP 2006-61185 A

  In the dishwasher described in Patent Document 1, when the fixed cleaning nozzle 103 is attached to the inner wall surface of the cleaning tank 102, a gap 105 is generated between the fixed cleaning nozzle 103 and the inner wall surface of the cleaning tank 102. There is a problem in that leftovers accumulate in the gap 105 and a bad odor is generated. Further, when the user cleans the cleaning tank 102, the user's finger enters the gap 105, the finger is caught on the fixed cleaning nozzle 103, and the fixed cleaning nozzle 103 may be detached from the inner wall surface of the cleaning tank 102. There was a problem that there was.

  The present invention has been made in view of such circumstances, and by forming the inner wall surface of the cleaning tank as a part of the fixed cleaning nozzle, a gap is generated between the inner wall surface of the cleaning tank and the fixed cleaning nozzle. Dishwashing that prevents leftovers from accumulating in the gap and prevents the user's fingers from getting into the gap and hanging on the fixed washing nozzle from coming off the inner wall of the washing tank The purpose is to provide a machine.

  A dishwasher according to the present invention includes a washing tank provided in a housing, a pump for circulating water supplied into the washing tank, and a fixed washing nozzle for injecting water sent from the pump. In the dishwasher, the fixed cleaning nozzle includes a groove-shaped flange fixed to the inner wall surface of the cleaning tank, and a portion of the inner wall surface where the flange is fixed is the fixed cleaning. It is a part of the nozzle.

  In the present invention, a cylindrical fixed cleaning nozzle is formed by fixing the collar to the inner wall surface of the cleaning tank, and the water sent by the pump flows through the inside of the fixed cleaning nozzle and jets the water. In addition, it is difficult to generate a gap between the fixed cleaning nozzle and the inner wall surface.

  Further, the dishwasher according to the present invention is characterized in that the inner wall surface includes a groove portion that is recessed at a portion where the collar portion is fixed.

  In the present invention, even when the grooved portion formed in the inner wall surface of the cleaning tank is provided and the collar is fixed to the groove, a cylindrical fixed cleaning nozzle is formed, and the collar is shallowly formed. The amount of water required for washing or rinsing dishes flows through the fixed washing nozzle.

  Moreover, the dishwasher which concerns on this invention WHEREIN: The said collar part is provided with a projection part in the edge part, and the said inner wall surface is provided with the guide groove by which the said projection part is guided when fixing the said collar part to the said inner wall surface. It is characterized by.

  In the present invention, by providing a protrusion on the edge of the flange and providing a guide groove on the inner wall surface, the protrusion is guided by the guide groove, and the flange is easily fixed to the inner wall surface. .

  Further, the dishwasher according to the present invention includes a washing tank provided inside the casing, a pump for circulating the water supplied into the washing tank, and a fixed washing that jets water sent from the pump. In a dishwasher comprising a nozzle, the inner wall surface of the washing tub is provided with a recessed groove, and the fixed washing nozzle has a surface facing the inner side of the washing tub, and is directed toward the inner side. A lid portion that covers the groove portion is provided so that a surface on which the groove portion is located is flush with the inner wall surface, and the groove portion is a part of the fixed cleaning nozzle.

  In the present invention, a groove is formed on the inner wall surface of the cleaning tank, the cover is covered with the cover, and the surface of the cover facing the inner side of the cleaning tank is flush with the inner wall. By positioning it at the position, a cylindrical fixed washing nozzle is formed and water is allowed to flow, and a step is prevented from occurring in the adjacent portion between the lid portion and the inner wall surface.

  The dishwasher according to the present invention is characterized in that the lid portion includes a protrusion, and the groove portion includes a guide groove that guides the protrusion when the lid is covered with the lid portion.

  By providing a guide groove in the groove and providing a protrusion on the lid, the protrusion is guided by the guide groove, and the groove is easily closed by the lid.

  Further, the dishwasher according to the present invention includes a flowing water passage having a gap between the guide groove and the protrusion, and the lid portion or the groove portion is adjacent to the lid portion or the groove portion. The groove portion is provided with a notch through which the water that has flowed through the flowing water passage is communicated with the flowing water passage.

  By providing a running water passage between the guide groove and the protrusion and providing a notch communicating with the running water passage, the water sent to the inside of the fixed washing nozzle by the pump flows through the running water passage from the notch. Be injected.

  In the dishwasher according to the present invention, a cylindrical fixed cleaning nozzle is formed by fixing the collar to the inner wall surface of the cleaning tank, and the water sent by the pump passes through the inside of the fixed cleaning nozzle. Water is injected and water is injected, and a gap is hardly generated between the fixed cleaning nozzle and the inner wall surface. Therefore, leftovers are prevented from accumulating in the gap between the fixed cleaning nozzle and the inner wall surface, and bad odor is prevented.When cleaning the inside of the cleaning tank, the user's finger enters the gap, It is possible to prevent the fixed cleaning nozzle from being detached from the inner wall surface due to a finger on the fixed cleaning nozzle.

  Further, in the dishwasher according to the present invention, a groove portion formed by recessing the inner wall surface of the washing tank is provided, and by fixing the collar portion to the groove portion, a cylindrical fixed washing nozzle is formed. Even when it is formed shallow, the amount of water required for washing or rinsing dishes flows through the fixed washing nozzle. Therefore, the portion of the fixed cleaning nozzle protruding inside the cleaning tank can be reduced to increase the capacity inside the cleaning tank and increase the capacity of the tableware.

  In the dishwasher according to the present invention, a protrusion is provided on an edge portion of the flange, and a guide groove is provided on the inner wall surface, whereby the protrusion is guided by the guide groove, and the flange is formed on the inner wall surface. Since it is easily fixed, the fixed cleaning nozzle can be attached to the inner wall surface in a short time.

  Further, in the dishwasher according to the present invention, a groove is formed by recessing the inner wall surface of the washing tub, the lid is covered with the groove, and the surface of the lid facing the inside of the washing tub is the inner surface. By being positioned on the same plane as the wall surface, a cylindrical fixed washing nozzle is formed and water is allowed to flow, and a step is prevented from occurring in the adjacent portion between the lid portion and the inner wall surface. Therefore, it is possible to increase the capacity of the washing tank and increase the capacity of the tableware, and when cleaning the inside of the washing tank, a finger is applied to the stationary washing nozzle, and the stationary washing nozzle is moved from the inner wall surface. It can be prevented from coming off.

  In the dishwasher according to the present invention, the groove is provided with a guide groove, and the lid is provided with a projection so that the projection is guided by the guide groove, and the lid is easily provided with the groove. Since the lid is closed, the fixed cleaning nozzle can be attached to the inner wall surface in a short time.

  In the dishwasher according to the present invention, a flowing water passage is provided between the guide groove and the protrusion, and a cutout communicating with the flowing water passage is provided, so that the pump is fed into the fixed washing nozzle by the pump. Water flows through the flowing water passage and is ejected from the notch. Therefore, there is no need to provide an injection port that protrudes toward the inside of the cleaning tank, and the inner wall surface of the cleaning tank can be made substantially flat to improve the design inside the cleaning tank.

(Embodiment 1)
Hereinafter, the present invention will be described in detail based on the drawings showing the first embodiment. FIG. 1 is a schematic diagram showing a configuration of a main part viewed from the front of the dishwasher according to the first embodiment, and FIG.

  In the figure, reference numeral 1 denotes a housing that forms the exterior of a dishwasher. A washing tub 2 is provided inside the housing 1, and a tableware holder 3 on which tableware 17 is placed is provided inside the washing tub 2. Below the tableware holder 3, there are arranged an injection nozzle 12 for injecting water onto the tableware and a spiral heater 4 for heating water when cleaning and rinsing are performed. A cylindrical fixed cleaning nozzle 5 for injecting water is provided on the inner wall surface of the cleaning tank 2.

  On the left side of the bottom of the cleaning tank 2, a water storage tank 13 is provided in which the cleaning tank 2 is recessed. A water supply pipe 14 for supplying water to the water storage tank 13 is disposed between the left side surface portion of the cleaning tank 2 and the housing 1, and a water supply valve 15 is attached to one end of the water supply pipe 14. The other end of 14 is a water supply opening 16 that opens toward the inside of the cleaning tank 2.

  A pump 7 and a motor 8 for driving the pump 7 are provided in the center of the bottom of the housing 1, and the bottom of the water storage tank 13 and the pump 7 are connected via a suction pipe 6. A water supply pipe 9 extending upward is provided at the upper part of the pump 7, and the water supply pipe 9 is connected to a water supply duct 18 connected to the injection nozzle 12 and the cylindrical fixed cleaning nozzle 5. A drain pipe 10 extending toward the back of the housing 1 is provided at the top of the pump 7, and the front end opening of the drain pipe 10 is a drain port 11.

  Next, the operation of the dishwasher according to Embodiment 1 will be described. The water supply valve 15 is opened and water is passed through the water supply pipe 14 to supply water from the water supply port 16 to the water storage tank 13. The water supplied to the water storage tank 13 is sent to the pump 7 through the suction pipe 6. The water sent to the pump 7 is sent to the injection nozzle 12 or the fixed cleaning nozzle 5 via the water supply pipe 9 and the water supply duct 18 by driving the motor 8, and the injection port of the injection nozzle 12 or the fixed cleaning nozzle 5. Is injected into the cleaning tank 2 from the injection port 52.

  The water sprayed toward the tableware 17 hits the surface of the tableware 17 and peels off the dirt adhering to the tableware surface. When the water injection is completed, the motor 8 is driven in the opposite direction, and the water accumulated in the water storage tank 13 is sent to the pump 7 through the suction pipe 6. The water sent to the pump 7 passes through the drain pipe 10 and is drained from the drain port 11, and the cleaning or rinsing of the tableware 17 is completed.

  Next, the configuration of the fixed cleaning nozzle 5 will be described in detail. The fixed cleaning nozzle 5 has a flange 51 protruding outward at an edge portion, and includes a groove-shaped flange 50 having a U-shaped cross section. The flange 51 is attached to the inner wall surface of the cleaning tank 2, and the flange 50 is fixed to the inner wall surface. An injection port 52 is provided on the bottom surface of the flange 50, and water is injected from the injection port 52. A portion of the inner wall surface to which the flange portion 50 is fixed covers the groove portion of the flange portion 50, and serves as a nozzle region that forms a part of the fixed cleaning nozzle 5 on the inner wall surface.

  By attaching the collar part 51 to the inner wall surface of the cleaning tank 2 and fixing the collar part 50 to the inner wall surface, a cylindrical fixed cleaning nozzle 5 is formed, and the water sent by the pump 7 is fixed to the inner wall surface. The water flows through the inside of the cleaning nozzle 5 and water is sprayed from the injection port 52, and a gap is hardly generated between the stationary cleaning nozzle 5 and the inner wall surface.

  Accordingly, it is possible to prevent leftovers from accumulating in the gap between the fixed cleaning nozzle 5 and the inner wall surface, and to generate a bad odor. When cleaning the inside of the cleaning tank 2, a user's finger is placed in the gap. It is possible to prevent the fixed cleaning nozzle 5 from coming off from the inner wall surface by entering the fixed cleaning nozzle 5 with a finger.

  A reinforcing member may be provided between the groove portion of the flange 50 and the cleaning tank 2. Further, the cross-sectional shape of the flange portion 50 may be an arc shape, a V shape, or any other shape through which water can flow. Moreover, as a method of attaching the collar part 51 to the inner wall surface of the cleaning tank 2, high frequency vapor deposition and screwing can be mentioned.

(Embodiment 2)
Hereinafter, the present invention will be described in detail with reference to the drawings showing the second embodiment. FIG. 3 is a schematic enlarged sectional view of the fixed washing nozzle 5 of the dishwasher according to the second embodiment.

  The fixed cleaning nozzle 5 has a flange 51 that protrudes outward at the edge portion and has a groove-shaped flange 53 having a U-shaped cross section. The flange 51 is provided with a T-shaped protrusion 51 a, and an injection port 52 is provided on the bottom surface of the flange 53, so that water is injected from the injection port 52. A recessed groove portion 21 is provided on the inner wall surface of the cleaning tank 2, and a T-shaped guide groove 21 a is provided in a portion near the edge of the groove portion 21 and facing the flange portion 51.

  The protrusion 51 a is guided in the guide groove 21 a, and the flange 53 is fixed to the groove 21. The groove portion 21 and the flange portion 53 face each other to form a cylindrical shape, and the groove portion 21 is a nozzle region that forms a part of the fixed cleaning nozzle 5 on the inner wall surface.

  When the groove portion 21 formed in the inner wall surface of the cleaning tank 2 is provided, and the flange portion 50 is fixed to the groove portion 21, thereby forming the cylindrical fixed cleaning nozzle 5 and forming the flange portion 53 shallow. However, the amount of water required for cleaning or rinsing the tableware 17 flows through the fixed cleaning nozzle 5. Therefore, the portion of the fixed cleaning nozzle 5 protruding inside the cleaning tank can be reduced to increase the capacity of the cleaning tank 2 and increase the capacity of the tableware 17.

  Further, by providing a protrusion 51a on the flange 51 of the flange 53 and providing a guide groove 21a on the inner wall surface, the protrusion 51a is guided by the guide groove 21a, and the flange 53 can be easily formed on the inner wall surface. Since it is fixed, the fixed cleaning nozzle 5 can be attached to the inner wall surface in a short time.

  In addition, a guide groove parallel to the edge is provided near the edge of the inner surface of the groove portion 21, and the protrusion portion is integrally provided on the side end of the flange portion 51, so that the protrusion portion is guided along the guide groove and the flange portion 53 is 21 may be fixed. Further, the flange portion 53 may be fixed to the groove portion 21 by high frequency vapor deposition or screwing.

  Among the configurations of the dishwasher according to the second embodiment, the same reference numerals are given to the configurations corresponding to those of the first embodiment, and detailed description thereof is omitted.

(Embodiment 3)
Hereinafter, the present invention will be described in detail with reference to the drawings showing the second embodiment. FIG. 4 is a schematic enlarged sectional view of the fixed washing nozzle 5 of the dishwasher according to the third embodiment.

  The inner wall surface of the cleaning tank 2 is provided with a groove portion 22 having a recessed U-shaped cross section. The fixed cleaning nozzle 5 includes a plate-like lid portion 54 that covers the groove portion 22, and a side end portion of the lid portion 54 is attached to an edge portion of the groove portion 22. The lid portion 54 is fixed to the groove portion 22 so that the surface of the lid portion 54 facing the inside of the cleaning tank 2 is located on the same plane as the inner wall surface of the cleaning tank 2. An injection port 52 is provided on the surface of the lid portion 54 facing the inside of the cleaning tank 2, and water is injected from the injection port 52. The groove portion 22 covered with the lid portion 54 is a nozzle region that forms a part of the fixed cleaning nozzle 5 on the inner wall surface.

  By providing the groove portion 22 formed in the inner wall surface of the cleaning tank 2 and providing the groove portion 22 with a lid portion 54 having a surface facing the inside of the cleaning tank 2, the lid portion 54 faces the cleaning tank 2 inside. The surface and the inner wall surface of the cleaning tank 2 are positioned on the same surface, so that a step is prevented from occurring in an adjacent portion between the lid portion 54 and the inner wall surface of the cleaning tank 2.

  Accordingly, the capacity of the cleaning tank 2 can be increased, and when the cleaning tank 2 is cleaned, the fixed cleaning nozzle 5 is caught by a finger, and the fixed cleaning nozzle 5 is detached from the inner wall surface. Can be prevented.

  Among the configurations of the dishwasher according to Embodiment 3, the same reference numerals are assigned to configurations corresponding to Embodiments 1 and 2, and detailed description thereof is omitted.

(Embodiment 4)
Hereinafter, the present invention will be described with reference to the drawings showing a dishwasher according to a fourth embodiment. FIG. 5 is a schematic enlarged sectional view of the fixed washing nozzle 5 of the dishwasher according to the fourth embodiment.

  A guide groove 22a parallel to the edge is provided at the edge portion of the inner surface of the groove portion 22, and a protrusion portion 54a is integrally provided along the side edge of the lid portion 54. The protrusion 54 a is guided along the guide groove 22 a, and the lid 54 is fixed to the groove 22 so that the surface of the lid 54 facing the inside of the cleaning tank 2 is located on the same plane as the inner wall surface of the cleaning tank 2. Has been.

  By providing a guide groove 22a parallel to the edge on the edge portion of the inner surface of the groove portion 22 and integrally providing the protrusion portion 54 along the side edge on the lid portion 54, the protrusion portion 54a is guided along the guide groove 22a. The lid portion 54 easily closes the groove portion 22.

  Since the guide groove 22a is provided in the groove portion 22 and the projection portion 54a is provided in the lid portion 54, the projection portion 54a is guided by the guide groove 22a, and the lid portion 54 easily closes the groove portion 22. The fixed cleaning nozzle 5 can be attached to the inner wall surface in a short time.

  Of the configurations of the dishwasher according to the fourth embodiment, configurations corresponding to those of the first to third embodiments are denoted by the same reference numerals, and detailed description thereof is omitted.

(Embodiment 5)
Hereinafter, the present invention will be described with reference to the drawings showing a dishwasher according to a fifth embodiment. 6 is a schematic enlarged sectional view of the fixed washing nozzle 5 of the dishwasher according to the fifth embodiment, FIG. 7 is a simplified front view of the fixed washing nozzle 5 viewed from the inside of the washing tank 2, and FIG. FIG. 3 is a schematic enlarged cross-sectional view of a notch portion of the type cleaning nozzle 5.

  A flowing water passage 22c is formed between the guide groove 22a provided at the edge portion of the inner surface of the groove portion 22 and the projection portion 54a provided at the side end of the lid portion 54. The passage 22 c communicates with the inside of the fixed cleaning nozzle 5. The lid portion 54 is adjacent to the edge portion of the groove portion 22, and a pair of notches 54 b and 22 b are provided in the lid portion 54 and the groove portion 22 at the adjacent portion. As shown in FIG. 7, a pair of notches 54b and 22b are disposed at equal intervals in the adjacent portions, and the notches 54b and 22b communicate with the flowing water passage 22c.

  The arrows in FIG. 8 indicate the flow of water sent into the fixed washing nozzle 5. The water sent to the inside of the fixed washing nozzle 5 by the pump 7 flows through the flowing water passage 22c and is jetted from the notches 54b and 22b toward the inside of the washing tank 2.

  The flowing water passage 22c is provided between the guide groove 22a and the projection 54a, and the cutouts 54b and 22b communicating with the flowing water passage 22c are provided, so that the water sent to the inside of the fixed cleaning nozzle 5 by the pump 7 flows. Since it flows through the passage 22c and is injected from the notches 54b and 22b, there is no need to provide an injection port protruding toward the inside of the cleaning tank 2, and the inner wall surface of the cleaning tank 2 is made substantially flat to The design can be improved, and the capacity of the washing tub 2 can be increased to increase the capacity of the tableware 17.

  Note that the notches 54b and 22b may be arranged at different intervals, and either one of the notches 54b or 22b may be provided.

  Of the configurations of the dishwasher according to the fifth embodiment, configurations corresponding to those of the first to fourth embodiments are denoted by the same reference numerals, and detailed description thereof is omitted.

It is a schematic diagram which shows the principal part structure seen from the front of the dishwasher which concerns on Embodiment 1. FIG. 3 is a schematic enlarged cross-sectional view of a fixed washing nozzle of the dishwasher according to Embodiment 1. FIG. FIG. 6 is a schematic enlarged cross-sectional view of a fixed washing nozzle of a dishwasher according to a second embodiment. FIG. 6 is a schematic enlarged cross-sectional view of a fixed washing nozzle of a dishwasher according to a third embodiment. 6 is a schematic enlarged cross-sectional view of a fixed washing nozzle of a dishwasher according to Embodiment 4. FIG. FIG. 10 is a schematic enlarged cross-sectional view of a fixed washing nozzle of a dishwasher according to a fifth embodiment. It is the schematic front view of the fixed washing nozzle seen from the inside of the washing tub of the dishwasher concerning Embodiment 5. FIG. 10 is a partially enlarged cross-sectional view of a notch portion of a fixed washing nozzle of a dishwasher according to a fifth embodiment. It is a simplified expanded sectional view of the fixed washing nozzle of the conventional dishwasher.

Explanation of symbols

DESCRIPTION OF SYMBOLS 2 Washing tank 5 Fixed washing nozzle 7 Pump 21, 22 Groove part 21a, 22a Guide groove 22b, 54b Notch 22c Flowing water passage 50,53 Gutter part 51 Gutter part 51a, 54a Protrusion part 52 Injection port 54 Cover part

Claims (6)

In a dishwasher comprising a washing tank provided inside a housing, a pump for circulating water supplied into the washing tank, and a stationary washing nozzle for jetting water sent from the pump,
The fixed cleaning nozzle includes a groove-shaped flange fixed to the inner wall surface of the cleaning tank, and a portion of the inner wall surface where the flange is fixed serves as a part of the fixed cleaning nozzle. A dishwasher characterized by   The dishwasher according to claim 1, wherein the inner wall surface includes a groove portion that is recessed at a portion to which the collar portion is fixed.   The said collar part is provided with a projection part in an edge part, and the said inner wall surface is provided with the guide groove where the said projection part is guided when the said collar part is fixed to the said inner wall surface. Dishwasher as described in In a dishwasher comprising a washing tank provided inside a housing, a pump for circulating water supplied into the washing tank, and a stationary washing nozzle for jetting water sent from the pump,
The inner surface of the cleaning tank has a recessed groove, and the fixed cleaning nozzle has a surface facing the inner side of the cleaning tank, and the surface facing the inner surface is the same as the inner wall surface. A dishwasher comprising a lid portion that covers the groove portion so as to be positioned on a surface, and the groove portion is a part of the fixed washing nozzle.   The dishwasher according to claim 4, wherein the lid portion includes a protrusion, and the groove includes a guide groove that guides the protrusion when the lid is covered by the lid.   A flowing water passage having a gap between the guide groove and the protruding portion is provided, and the lid portion or the groove portion communicates with the flowing water passage at a portion where the lid portion and the groove portion are adjacent to each other. The dishwasher according to claim 5, further comprising a notch through which water flowing through the flowing water passage is injected.

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